Aparna Keshaviah

Aparna Keshaviah

Senior Statistician
Areas of Expertise
  • Statistical modeling
  • Data visualization
  • Survey design
  • Quality control 
  • Data Analytics
  • Behavioral Health
  • Population Health
  • Nutrition
  • Environment
About Aparna

Aparna Keshaviah is an applied statistician with over 15 years of experience leading the design and analysis of clinical trials to evaluate mental health treatments, health screening methods, and cancer therapeutics. Her work at Mathematica spans the areas of public health, military health, and environmental health, and her expertise in statistical modeling extends to visualization of model outputs and quality control of the data feeding into model.

Keshaviah has led projects to explore the potential of wastewater testing for population drug use estimation; to assess whether integrating physical and mental health care improves physical health and functioning for individuals with serious mental illness; and to examine how legalizing retail marijuana will affect state government budgets as a result of changes in tax and licensing revenue, regulatory needs, criminal justice activity, and health care spending. She reduces systematic biases and errors in research through the use of behavioral insights in survey design, development of flexible modular software programs, and formalization of best practices for workflows and analysis. She also has a burgeoning interest in incorporating information design throughout the research process–from study design to dissemination–to better communicate complex ideas to multiple audiences.

Prior to joining Mathematica in 2015, Keshaviah served as a lead biostatistician at the Dana-Farber Cancer Institute, a bioinformatics specialist at the Massachusetts General Hospital’s Department of Psychiatry, and was a 2006-2007 Fulbright fellow to India. She is widely published in journals such as the New England Journal of Medicine, JAMA Psychiatry, and Envirometrics, and contributed to the latest version of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Keshaviah holds a Master’s degree in biostatistics from the Harvard School of Public Health.

Key Projects
  • School Nutrition and Meal Cost Study (SNMCS)

    The School Nutrition and Meal Cost Study provides data on a broad array of topics, including critical information about the food and nutrient content of school meals, the costs of school meals, the food environments in schools, and the contribution of school meals to children's overall diets.

  • Health Care Surveys: Analysis and Presentation of Findings

    Mathematica is working with the Defense Health Agency to facilitate the implementation of health care beneficiary surveys, providing various support services, including sample and questionnaire design, reporting and research, weighting for nonresponse, data analysis, database construction, and documentation....